<template>
    {{ message.split('').reverse().join('') }}
    <p v-show="false">123</p>
    <p v-if="false">123</p>
</template>

<script>
import { ref } from '@vue/reactivity'
export default {
    setup () {
        const message = ref('hello')
        return {
            message
        }
    }
}
</script>